August Weather in San Antonio

Last updated: March 2, 2024

The weather in San Antonio, Mexico, during August is characterized by an average temperature of 26°C (79°F). Highs can soar to 30°C (86°F), while lows may dip to 23°C (73°F). Typically, the humidity level in San Antonio throughout August hovers around 78%.

23°C (73°F)

Minimum temperature

26°C (79°F)

Average temperature

30°C (86°F)

Maximum temperature

78%

Humidity

Precipitation and Sunshine hours

In August, San Antonio averages 411 mm (16.2 inches) of rainfall, typically over the course of 27 rainy days. The month enjoys an average of 12 hours 36 minutes of daylight, with the sun shining for approximately 9 hours 39 minutes each day. Additionally, there is a 14% probability of sunny days during this period.

411 mm (16.2 inches)

Precipitation

27 rainy days

Rainy days

9 hours 39 minutes

Sunshine hours

14%

Chance of sun

UV Index

In August, the UV Index in San Antonio reaches a maximum of 13, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 0 1 2 5 8 11 13 13 10 7 4 2 1
Exposure Low Moderate VeryHigh Extreme VeryHigh High Moderate Low
Time to burn 45 min 30 min 15 min 10 min 15 min 25 min 30 min 45 min

Compare San Antonio's Climate with Cities Worldwide